Getting Started with WebSphere Application Server

104 Getting Started with WebSphere Application Server Community Edition
}
Listing 5.14 – Definition of StudentEJBInterface
package com.ibm.start.wasce.studentejb;
……
@Stateless
public class StudentEJB implements StudentEJBInterface {
@PersistenceUnit(unitName = "Student")
EntityManagerFactory emf;
public List calculateCredit() {
EntityManager em = emf.createEntityManager();
List creditList = new ArrayList();
Query query =
em.createQuery("select s from Student AS s order by s.id");
List sutdentList = query.getResultList();
for (Student student : sutdentList) {
int credit = (int) ((float) (student.getScore1()
+ student.getScore2() + student.getScore3()) / 300 * 5);
student.setCredit(credit);
creditList.add(credit);
}
em.flush();
em.close();
return creditList;
}
}
Listing 5.15 – Implementation of StudentEJB
Step 2:
Right click ejb-studentejb -> Build Path -> Configure Build Path -> Projects, add ejbstudentjpa
project on build path
Step 3:
Right click ejb-studentejb -> Properties ->Project Reference, click ejb-studentjpa as a
reference
7. Create a Dynamic Web Project
Step 1:
In Eclipse click on File -> New -> Other…-> Dynamic Web Project to create a dynamic
Web project ejb-studentweb.